Ultra-Short-Wave Transmission and Atmospheric Irregularities

I N an earlier paper experimental data were presented which indicated that the transmission of ultra-short-wave signals was dependent upon the state of the atmosphere, in particular upon its water vapor content. The present paper contains the results of a continuation of this work where a two-year survey of ultra-short-wave transmission over a 70-mile (112.6 km.) ocean path was carried out. Transmission was had on 106 days during this period.